Gaseous conduction lamp



Oct. 11, 1932. G, 5, JAMES 1,881,619

GASEOUS CONDUCT]: ON LAMP Filed Aug. 17, 1928 IN VEN T OR Patented Oct. 11, 1932 v UNITED STAT S PATENT OFFICE A I GEORGE S. J'AHES,.OF LONG ISLAND, NEW YORK, ABSIGNOB, BY ASSIGN'IEN'IS,

El-'0 JAMES NEON DOUBLE ELECTRODECORPOEATION, OF CHICAGO, ILLINOIS, A. COR- PORATION OF DELAWARE GASEOUS comwc'non 1mm Application n w at. 1'1, mas. emu-1n. zoom.

The main object of this invention isto. provide an improved gaseous conduction lamp which is highly efiicient, and novel and attractive in appearance.

Objects pertaining to details and economies of my invention will appear from the description to follow. The invention is defined in the claims;

' with portionssectioned an vbroken away to 1 wall '6. This rear wall is illustrate structural details.

Fig. 2 is a side view looking from the to or bottom of the lamp as presentedin Fig. 1. Fig. 3 is a side view corresponding to that of Fig. 2 modified in the matter of shape.

In the embodiment illustrated in Figs. 1 and 2 the container for the gas, such as neon, helium, argon and the like, consists of an enlarged body portion 1 and tubular portions 2 opening through the opposite sides. These tubular portions terminate in electrode chamber enlargements 3. I

The electrodes shown conventionally at.4 are enclosed within these chambers 3. The enlargedportion 1 is of general circular outline and has a spherically curved'front wall 5 and a spherically curved or concave rear provided with a -reflector7 so that the light is not permitted to pass throu h this rear wall and is refiected forwar y.

In the modification shown in Fig. 3 the rear wall of the enlarged portion 8 of the container isflat.

These lamps are well adapted for illuminating purposes where-a relatively large 1. A gaseous conduction lamp comprising volume, of light is 'desired' from a single a container having tubular end portions terminating in electrode chambers, and an intermediate circular enlargement withwhich said tubular end portions are connected, said enlargement having a concave rear wall provided with a reflector.

2. A gaseous conduction lamp comprising a container having tubular end portions terminating in electrode chambers, and an intermediate circular enlargement with which said tubular end portions are connected.

3.v gaseous conduction lamp comprising a container having tubular end portions ter- 

